Venture Capital

Threshold Ventures

Threshold Ventures is an early-stage venture capital firm based in Menlo Park, California that backs founder-led technology companies at the threshold of breakout growth. Threshold is the 2019 rebrand of Draper Fisher Jurvetson (DFJ), the storied Sand Hill Road firm founded in 1985; managing partners Emily Melton and Josh Stein spun the venture practice into an independent, focused fund. Threshold pursues a high-conviction strategy, concentrating on a small number of Series A and Series B investments and partnering hands-on with founders for the long term, frequently holding board seats through IPO and beyond. The firm invests across enterprise software and SaaS, developer tools and infrastructure, fintech, digital health and healthcare, and AI. Its portfolio has produced 10 unicorns, 3 IPOs, and 17 acquisitions, and includes Box, Twilio, Redfin, Remitly, Doximity, Rippling, LaunchDarkly, Livongo, and Talkdesk. Threshold has invested in roughly 87 companies and raised a ~$250M fund following the rebrand.

86 portfolio companies 86 publish APIs here 12 properties
Venture CapitalSeries ASeries BEarly StageEnterprise SoftwareSoftware-as-a-ServiceFintechDigital HealthDeveloper ToolsInfrastructureArtificial IntelligenceSilicon ValleyUnited States
Portfolio Strength across 82 profiled portfolio companies on the network
6 top-rated API companies 2 exemplar · 4 strong
10 agent-ready companies 0 agent-native · 10 agent-ready
Average quality of the book:
Composite emerging 22.6
Agent-Readiness human-only 9.6

Firms are ranked by cumulative portfolio strength — how many highly-rated API companies they've backed, weighted by tier across composite quality and agent-readiness. The averages below are a secondary read on the typical company in the book.

Threshold Ventures has 86 portfolio companies tracked on the APIs.io network, of which 86 (100%) publish APIs indexed here.

Its highest-rated API providers on the network are Twilio, LaunchDarkly, SugarCRM, Box, Doximity.

Portfolio on the Network

Portfolio companies that publish APIs indexed on APIs.io, grouped by their API Evangelist rating. Exemplar and Strong are expanded by default.

Exemplar 2 Complete, well-documented, and agent-ready
Strong 4 Solid coverage with minor gaps
Developing 15 Usable, with meaningful gaps to close
Thin 6 Limited public surface area
Emerging 22 Early or largely undocumented
Minimal 33 Almost no public developer surface
Unrated 4 Not yet scored

Properties

Portfolio

Where the firm publishes its investments

Team

Partners and investing staff

Content

Blog, podcast, newsletter, and research

Firm

The firm itself

Cohort brief

Auto-generated

The 82 portfolio companies with APIs in the catalog, backed by Threshold Ventures, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
82
of 86 on the roster
Mean Kin Score
22.1
+1.4 vs catalog 20.7
Mean Agent Readiness
9.3
-0.4 vs catalog 9.7
Spread
0.1–73.4
median 14.4 · σ 18.3
How the 82 split by band
Exemplar 1Strong 3Developing 16Thin 7Emerging 22Minimal 33
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Access Clarity 29.1 22.3 +6.8 82
Contract Governance 7.1 6.4 +0.7 82
Developer Ergonomics 18.2 17.9 +0.3 82
Contract Quality 17.5 17.5 0 82
Operational Transparency 11 11.3 -0.3 82
Discoverability 59.8 60.4 -0.6 82

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 18% 16% +2
MCP server (first-party) 7% 7% 0
Agent Skills 0% 0% 0
OAuth scopes 7% 9% -2
Security 94% 88% +6
Arazzo workflows 4% 2% +2
Governance rules 15% 13% +2

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Twilio 73.4
  2. 2 SugarCRM 63.3
  3. 3 Doximity 57.9
  4. 4 Freshpaint 56.3
  5. 5 Sanity 52.8
  6. 6 Ritten 52.2
  7. 7 Box 51.8
  8. 8 Parasail 51.6
  9. 9 Balena 50.5
  10. 10 CircleCI 49.6
Top by Agent Readiness
  1. 1 Box 41.9
  2. 2 FrontApp 41.4
  3. 3 Twilio 38.5
  4. 4 Doximity 36.9
  5. 5 LendKey 36.1
  6. 6 Forward Networks 33.8
  7. 7 Ritten 31.5
  8. 8 Freshpaint 29
  9. 9 Veritus 29
  10. 10 CircleCI 28.3
This roster declares 86 members; 82 resolve to a provider in the catalog and 82 carry a score (100%). The figures above describe the scored members only.Generated from the catalog build of 25 August 2026, across 26891 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Source (apis.yml)

apis.yml Raw ↑
aid: threshold-ventures
name: Threshold Ventures
description: >-
  Threshold Ventures is an early-stage venture capital firm based in Menlo Park,
  California that backs founder-led technology companies at the threshold of
  breakout growth. Threshold is the 2019 rebrand of Draper Fisher Jurvetson
  (DFJ), the storied Sand Hill Road firm founded in 1985; managing partners Emily
  Melton and Josh Stein spun the venture practice into an independent, focused
  fund. Threshold pursues a high-conviction strategy, concentrating on a small
  number of Series A and Series B investments and partnering hands-on with
  founders for the long term, frequently holding board seats through IPO and
  beyond. The firm invests across enterprise software and SaaS, developer tools
  and infrastructure, fintech, digital health and healthcare, and AI. Its
  portfolio has produced 10 unicorns, 3 IPOs, and 17 acquisitions, and includes
  Box, Twilio, Redfin, Remitly, Doximity, Rippling, LaunchDarkly, Livongo, and
  Talkdesk. Threshold has invested in roughly 87 companies and raised a ~$250M
  fund following the rebrand.
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://threshold.vc/favicon.ico
x-type: venture-capital
x-category: Venture Capital
created: '2026-07-17'
modified: '2026-07-17'
specificationVersion: '0.23'
tags:
  - Venture Capital
  - Series A
  - Series B
  - Early Stage
  - Enterprise Software
  - Software-as-a-Service
  - Fintech
  - Digital Health
  - Developer Tools
  - Infrastructure
  - Artificial Intelligence
  - Silicon Valley
  - United States
tags_raw:
  - Venture Capital
  - Series A
  - Series B
  - Early Stage
  - Enterprise Software
  - SaaS
  - Fintech
  - Digital Health
  - Developer Tools
  - Infrastructure
  - AI
  - Silicon Valley
  - United States
apis: []
common:
  - type: Website
    url: https://threshold.vc/
  - type: About
    url: https://threshold.vc/about
  - type: Portfolio
    url: https://threshold.vc/portfolio
  - type: Portfolio
    url: portfolio/threshold-ventures-portfolio.yml
  - type: Team
    url: https://threshold.vc/team
  - type: Team
    url: team/threshold-ventures-team.yml
  - type: News
    url: https://threshold.vc/newsroom/latest
  - type: Blog
    url: https://threshold.vc/newsroom/viewpoints
  - type: Blog
    url: https://medium.com/threshold-ventures
  - type: Crunchbase
    url: https://www.crunchbase.com/organization/threshold
  - type: LinkedIn
    url: https://www.linkedin.com/company/thresholdvc
  - type: Twitter
    url: https://twitter.com/thresholdvc
  - type: Features
    data:
      - 'Stage: Series A, Series B (early stage)'
      - 'Sectors: enterprise software, SaaS, developer tools, infrastructure, fintech, digital health, AI'
      - 'Geography: United States (Silicon Valley focus)'
      - 'Founded: 1985 (as DFJ); rebranded to Threshold in 2019'
      - 'HQ: Menlo Park / Palo Alto, California'
      - 'Fund: ~$250M raised post-rebrand'
      - 'Investments: ~87 companies; 10 unicorns, 3 IPOs, 17 acquisitions'
    sources:
      - https://threshold.vc/about
      - https://news.crunchbase.com/venture/threshold-formerly-known-as-dfj-targets-250m-for-latest-venture-fund/
      - https://www.crunchbase.com/organization/threshold
    updated: '2026-07-17'
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com
    url: https://apievangelist.com
  - FN: APIs.json
    url: https://apisjson.org
  - FN: Threshold Ventures
    url: https://threshold.vc

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